Edmond verstraete



2 Sheets-Sheet (No Model.)

E. VERSTRAETE.

ELEGTEIG GAE EEAKE.

No. 465,034. Patented Deo. 15,1891.

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2 Sheets-Sheet 2.

(No Model.)

E. VERSTRAETE.

ELECTRIC GAR BRAKE.-

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UNITED STATES PATENT OEEICE.

EDMOND VERSTRAETE, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO PETERM. KLING, OF SAME PLACE.

ELECTRIC CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 465,034, dated December15, 1891.

Application filed February 5, 1891. Serial N o. 380,344. (No model.) l

T all whom t may concern:

Be it known that I, EDMOND V Ens'rRAE'rE, of St. Louis, Missouri, haveinvented a certain new and usefullmprovemeut in Electric Car- Brakes, ofwhich the following is afull, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

My present invention relates to the solenoid ro class of electric brakesintended more particularly for use on street-cars; and my in- -ventionconsists in features of novelty hereinafter fully described, and pointedout in the claims.

' 15 Figure I is a top or plan View illustrative of my invention. Fig.II is a side view. Fig. III is a section taken on line III III, Fig. II.Figs. IV and V are diagrams illustrating the manner of Wrapping thesolenoids referred zo to. Fig. VI is a bottom View illustrating theapplication of my invention to a car-brake'.

Referring to the drawings, 1 represents a cast-iron rectangularframecomposed of sides 2 and ends 3 3u.

2 5 4t represents a cross-head fitting within the frame and havingtenons or shoulders 5 fitting in slots 6 of the sides 2.

7 represents a chain connecting the crosshead e to the brake-levers,andV this chain 3o passes between grooved rollers 8, journaled in theend 3 of the frame, the rollers serving to guide the chain and keepingthe magnets always under a straight pull. Between the end piece 3 andthe sides of the frame are brass blocks 3b, which, with the brasscrosspiece 14, constitute non-magnetic connections.

9 represents the magnets secured to the cross-head II and which enterthe solenoids, as shown in Fig. III. The solenoids are com- 4o posed ofa number of different sections 10, ll, 12, and-13, arranged Within theframe and supported at the out-er end by the end piece 3 of the frame land at the inner end by a brass cross-piece 14, as shown clearly inFigs.

I and III. The sections of the solenoids are wound separately, so as toenable me to make any desired combination of sections, the ends of thewires of the different sections being brought out, as shown in Figs. IVand V, so

5o that any desired two may be connected together. The sections 11 arelarger than the other sections, so as to cause a quick and strongmovement of the magnets when they first commence to move.

l5 represents the pole-pieces of a small 5 5' horseshoemagnet, havingpole connecting piece 16 formed in one part with the end 31L of theframe 1. The pole-pieces have stems 17 with heads 18 on their outerends, the stems 17 fitting loosely in openings or perforations 6o in thepiece 16 .so as to permit the pole-pieces to move in the solenoids.

' The operation is as follows: When the current is put on, the solenoidsdraw the magnets 9 inward, and the pole-pieces or magnets 65 l5 alsotend to draw the magnets 9 inwardly. The magnets 9 will finally come incontact with the pole-pieces 15, when the magnets and pole-pieces willmove together until the pole-pieces come against the end In the 7oreverse movement of the magnets 9 the polepieces will be drawn backuntil the heads 18 of the stems 17 come against the part 16, and thenthe magnets 9 will leave the pole-pieces and move to the position shownin Fig. III. The pole-pieces have rubber or other suitable facings 15ato prevent `too much adhesion between the pole-pieces and the magnets.

A brake thus constructed is more powerful than any solenoid-brake I haveever seen. 8o

I claim as my invention- 1. In an electric car-brake, the combination ofthe frame, a sliding cross-head, a magnet secured to the cross-head,andl a 'sectional solenoid, one of said sections being larger 8 5 thanthe others, substantially as and for the purpose set forth.

2. In an electric car-brake, the combination of a frame, a slidingcross-head, magnets secured to the cross-head, sectional solenoids, 9oand pole-pieces 15, and the pole-connecting piece 16, substantially asand for the purpose set forth.

3. In an electric car-brake, the combination of a frame, a slidingcross-head, magnets secured to the cross-head, sectional solenoids,pole-pieces l5, and pole-connecting piece 16, the pole-pieces havingstems 17 fitting in perforations in the piece 16, and having heads 1S,substantially as and for the purpose set forth. loo

et. In an electric car-brake, the com bination of the frame, a slidingcross-head, magnets secured to the cross-head, sectional solenoids, Y G.In an eleetrio'czLr-brzike, the combination and pole-pieces 15, one ofthe sections of each of the frame, solenoids, magnets, and polerosolenoid being larger than its other sect/ions, pieces, said pole-pieceshaving facings 15, as substantially as and for the purpose set forth.set forth.

5. In an electric car-brake, in combination Y EDMOND VERSTRAETE. withthe frame, magnets, and solenoids, the 1n presence ofbrass cross-piece14, and brass blocks 3b, as E. S. KNIGHT,

set forth. Y A. M. EBERSOLE.

